Trudeau was all business in his post on Twitter about the meeting, however.

"Trade between Canada & California has created millions of middle class jobs and economic growth on both sides of the border," he wrote. "My thanks to @GavinNewsom for a great discussion on how we can increase trade."

Trade between Canada & California has created millions of middle class jobs and economic growth on both sides of the border. My thanks to @GavinNewsom for a great discussion on how we can increase trade. pic.twitter.com/p0tRPoKfUZ